How does that square with her being weaker than Sheriam who is herself less than 50% of Egwene (if Egwene is stronger than Amys and Melaine)? By your estimation Beonin just made a gateway that is 60% the size of Egwene, but we know that she is less than half as strong ... how does that work?

And now 4 women of Beonin level are strong enough to hold Rand, when Egwene, Romanda and Lelaine could not?